In a dazzling range of smartphone industry, for students with little self-control, mobile phones have become the number one killer of students ' learning. The existence of a card phone caters to all the characteristics of the student machine:

One, can call, send text messages;

Second, can listen to music, appropriate to reduce pressure;

Third, the shape to personality, full of youthful vitality, in line with the student image.

Does not affect the study, but does not affect the student normal communication, the card mobile phone is no doubt an internet addiction artifact.